Summary:
- Genetic ancestry and self-identified racial or ethnic identity are often not the same. People's genetic ancestry can be quite different from how they identify themselves.
- Genetic ancestry is determined by analyzing a person's DNA, while racial and ethnic identity is based on social and cultural factors. These two things don't always align.
- The study found that many people have a mix of genetic ancestry from different populations, even if they identify with a single racial or ethnic group.